Centrifugal machine



P. T. SHARPLES.

CENTRIFUGAL MACHINE.

APPLICATION FILED JULY 14, 1919.

Patented Dec. 27, 1921.

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UNITED STATES PATENT OFFICE.

fPHII-IIP '1. SHARPLES, OF ST. DAVIDS, PENNSYLVANIA.

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Application filed July 14,

To all whom it may concem:

Be it known that I, PHILIP T. SHARPLES, a citizen of the United States, residing at St. Davids, in the county of Delaware and State of Pennsylvania, have invented certain Improvements in Centrifugal Machines, of which the following is a specification.

This invention is designed primarily for feeding difi'erent liquids separately into the revolvin bowl of a centrifugal machine and preferab y 0 as to maintain the separation of such liquids after they have been introduced into the revolving bowl by delivering them to their respective zones.

In the centrifugal separation of the constituents of certain substances, it is important to use a carrier liquid for the purpose of keeping them, particularly a viscous or adhesive heavier constituent, from contact with the bowl of the centrifuge, and in such case it is frequently desirable that the carrier liquid should not mix with the substance to be separated.

It is a primary object of my invention to introduce a carrier liquid and a substance to be separated to their separate zones within the bowl prior to bringing them into contact.

The characteristic features and advantages of the improvements will be fully understood from their application set out in the following description and the accompanying drawings in illustration thereof.

In the drawings, Figure 1 is a broken vertical sectional view taken through the bottom of a centrifuge bowl combined with feeding and controlling means, and Fig. 2 is a sectional view taken on the line 2 -2" of Fig. 1.

The mechanism hown in the drawings, by way of illustrating. my invention, comprises the revoluble suspended bowl 1 provided with the axial bottom nipple or inlet tube 2, on which is telescoped a housing 3 detachably connected with a stationary bearing part 4, which supports, within the housing 'and surrounding the nipple 2, the bushing 5 engaging the nipple, the ferrule 6 telescoped on the bushing, and the coiled spring 7 holding the ferrule against the part or drag plug 4. to control the lateral movement of the bowl.

In accordance with my invention in its preferred form, the bowl bottom 8 has fixed thereon a diaphragm 9 having a periphery 10 which is supported on the bottom by the Specification of Letters Patent.

Patented Dec. 27, 1921.

1919. Serial No. 310,661.

spacers 11, so as to provide the passages 12 and is fixed to the bottom by screws 13; the center of the diaphragm being a downwardly extending cone fru'stum 14 having an opening 15 disposed above the inlet nipple 2 in axial relation therewith.

The plug 4 has a coupling member 16 set in the bottom thereof. This coupling member 16 has connected therewith a nozzle 17, which extends through the drag plug 4, the nipple 2 and the aperture 15, and the conduit 18 communicating with the nozzle '17. A spreader 19 is fixed to the bottom of the wings 20 directly above the nozzle 17 and dis erses the substance to be separated, which is discharged from the nozzle 17 as it is supplied from the conduit 18.

A econd nozzle 21 extends from the conduit 22, connected therewith by the plug 16, through the nozzle 17, the nozzle 21 having an outlet 23 through theside of the nozzle 17 into the bottom of the bowl 1 beneath the diaphragm 9. The carrier liquid is thus delivered from the conduit 22 through the nozzle 21 below the diaphragm 9 and flows through the passages 12 to the wall of the bowl 1.

It will be understood that in operation, as the liquids are or may be delivered simultaneously under control by way of the conduits 18 and 22 through the respective nozzles 17 and 21 on opposite sides of the diaphragm 9 to the respective zones which they are to occupy in the revolving bowl, they will have no opportunity to mix and consequently no necessity exists for effecting their separation in the bowl by centrifugal force, the time and energy of centrifugal separation are devoted to the segregation of the constituents of the substance to be resolved, and the possibility of mechanical or chemical combination between the carrier liquid and the substance to be separated is reduced to a minimum.

Having described my invention, I claim:

1. In a centrifugal machine, the combination with a revoluble bowl having an axial inlet, of means comprising a nozzle for delivering a substance through said inlet into said bowl and means comprising a second nozzle extending through the nozzle first named for delivering a second substance separately into, said bowl.

2. In a centrifugal machine, the combination with a revoluble bowl having an axial inlet and containing a diaphragm provided with an aperture, of means comprising a nozzle for delivering a substance into said .bowl through said inlet and aperture above said spreader and a nozzle for delivering a second substance through aid inlet and beneath said diaphragm.

42. In a centrifugal machine, the combination of a revoluble bowl, a diaphragm in the bottom of said bowl and means for delivering difierent substances through the bottom of said bowl on opposite sides of said diaphragm,

Signed at West Chester, in the county oi Chester and State of Pennsylvania, this 8th day of July 1919.

P. T. SHARPLES. 

